The type of photography that you are planning to use is an important decision factor. Here we have evaluated the Tamron 17-28mm F2.8 Di III and the Sigma 16mm F1.4 DC DN MFT for their suitability to various photography scenarios:
Size and Weight Comparison The size of a lens is a crucial factor to consider when comparing two lenses. Tamron 17-28mm F2.8 Di III is the longer of the two lenses at 99mm. The Sigma 16mm F1.4 DC DN MFT with a length of 92mm, is 7mm shorter. Besides being longer, the Tamron 17-28mm F2.8 Di III also has a larger diameter of 73mm compared to the Sigma 16mm F1.4 DC DN MFT's 72mm diameter.
Below you can find a scaled side-by-side image of Tamron 17-28mm F2.8 Di III and Sigma 16mm F1.4 DC DN MFT to get a better idea of how their sizes compare in real life.
Comparison image of the Tamron 17-28mm F2.8 Di III and the Sigma 16mm F1.4 DC DN MFT Size and Weight The weight of a lens is equally significant as its external dimensions, particularly if you intend to handhold your camera and lens combination for extended periods. Sigma 16mm F1.4 DC DN MFT weighs 405g, 3% (15g) lighter than the Tamron 17-28mm F2.8 Di III's weight of 420g.
Filter Threads
Both the Tamron 17-28mm F2.8 Di III and the Sigma 16mm F1.4 DC DN MFT have the same Filter thread size of 67mm .
Below are links to the 67mm filters that we recommend you to consider for these lenses:
Lens Mounts
The Tamron 17-28mm F2.8 Di III has the Sony E lens mount whereas the Sigma 16mm F1.4 DC DN MFT has the Micro Four Thirds lens mount . Some of the latest released cameras that are compatible with these mounts are Sony FX5 , Sony A7R VI and Sony A7 V for the Sony E Mount and OM System OM-3 Astro , OM System OM-5 II and OM System OM-3 for the Micro Four Thirds Mount.
Focal Range
Tamron 17-28mm F2.8 Di III has a focal range of 17-28mm and
1.7X zoom ratio . When it is mounted on an APS-C sensor camera with 1.5x crop, it provides a 35mm (FF) equivalent of
25.5 - 42mm .
On the other hand, the Sigma 16mm F1.4 DC DN MFT is a prime lens with fixed focal lenght of 16mm which has an effective (full-frame 35mm equivalent) focal range of 32mm when used on a FourThirds format camera.
